1. Cotten, C. A. 1985. Cladoceran assemblages related to lake conditions in Eastern Finland. Ph.D. dissertation. Indiana University, Bloomington, IN.
2. Population dynamics of pelagic cladocerans in Lake Maggiore;de Bernardi;Mem. Ist. Ital. Idrobiol.,1975
3. The population dynamics of three cladocerans of Lago Maggiore related to the predation pressure by a planktophagous fish;de Bernardi;Verh. Internat. Verein. Limnol.,1974
4. On the productivity and ecology of zooplankton and its role as food for fish in some lakes in Central Finland;Hakkari;Biol. Res. Rep., Univ. Jyväskylä,1978
5. Cladocera Sueciae oder Beiträge zur Kenntniss der in Schweden lebenden Krebsthiere von der Ordnung der Branchiopoden und der Unterordnung der Cladoceren;Lilljeborg;Nova Acta. R. Soc. Sci. Upsal.,1901